Metal frame for doors



June 1I., 1929. l. A. BAUM l.7l7n,084

METAL FRAME FOR DOORS Filed March 6. 192e .2 sheets-sheet 1 June 11,1929. l. A. BAUM METAL FRAME FOR DOORS Filed March 5. 1928 2Sheets-Sheet 2 'illu IsAAc A. BAUM, or

n 1,717,084 PATENT ori-Ica CHICAGO, ILLINOIS.

METAL FRAME FOR DOORS.

Application' led March 6,

My invention relates to means for framing door openings and particularlyto means for joining the ends of all metal frames.

I am aware that metal frames of different forms have been devised butmany thereof are so constructed that they must lbe assembled andpermanently united in the shop, necessitating shipping and. handling inassembled condition. This is undesirable for many reasons. Y

One object of my invention is to provide a frame composed of elements ofthe proper shape and having associated therewith suitable means enablingthe respective frame elements to be assembled and rigidly joined in thefield. In the construction shown, this is accomplished by Very simpleelements and the assembly is simply effected by the seating of a fewscrews. The resulting structure is firm and rigid and insuresl a perfectmiter joint. f

Another improvement disclosed in connection with the parts illustratedis in the means for readily7 placing and anchoring the frame preliminaryto the laying of the Wall. This means comprises a wood block simplysecured in the frame and adapted to form a means of connection withvertical struts or braces extending downward from the ceiling,

The invention will be more readily understood by referring to theaccompanying drawings, in which- Fig. 1 isa side elevation of a cornerof a frame arranged in accordance with my in- Vention g y Fig. 2 is anelevation from one edge of the frame shown in Fig. 1.;

Fig. 3 is a plan view thereof;

Fig. 4 is a sectional View on the line 4-4 of Fig. 1; p

Fig. 5 is a perspective view showing the relation of two separatedattaching channels;

Fig. 6 is a sectional view onrthe line 66 of Fig. 7 showing a slightlymodified construction;

Fig.,7 is a plan view of the construction shown in Fig. 6, and

Figs. 8 and 9 are perspective views of two attaching elements.

In the construction shown in Figs. 1 to 5 inclusive, I have illustratedportions of a frame or casing consisting of vertical and horizontalelements of duplicate form or cross sectional shape. The cross sectionof the casing is best shown in Fig. 4 in which it will be seen itcomprises a jamb 10, a stop 11 1928. ,Serial No. 259,431.

formed outwardly from the metal of the jamb, a flange 12 constituting adecorative trim and a rebent margin 13 acting as a plaster terminal.This may be duplicated on the two sides of the frame. l

Asbest shown in Fig. 1, the ends of the vertical and horizontal membersare mitered and an object of the invention is vto provide sure andcertain means for effecting a close fit of the miter joint. To this end,I rovide a pair of attaching elements in the form of short channels bestshown in Fig. 5.V The channels comprise a Vweb 14, side flanges 15, earsor lugs 16 bent inwardly from the ends of the flanges 15 and a tongue 17projecting from the web 14'. The lugs and tongueare suitably apertured.It will be noted that the channels are, in effect, exact duplicates, theupper being fitted snugly within the channel of the cross frame memberand the lower being similarly fittedy within the vertical frame member.When fitted in place and permanently weldedV the vertical and'horizontal members of the frame, with the apertureslin the lugs inregistering relation; may be ac curately drawn together by the use ofscrews thus insuring an accurate fitting of the miter joint. Y y

As an additional means for insuring a more rigid connection and toprevent distortion during the process of setting of the frame I providethe L shaped side plates, two of which are employed, one at each side ofthe attaching channels. One leg 18 of the L shaped plate is welded tothe flanges 15 of the attaching channel in the cross member of thefra-me while the other leg 19 lies along side i of the correspondingflanges of the lower attaching channel. Registering holes provided inthe plate and the flanges of the channel accommodate bolts or screws 20as best shown in Figs. 1 and 4. At the inner marginal edge of the Lshaped plates I provide the angular flange 21 which abuts snugly againsta portionof'the trim 12 of the frame.

The side plates being welded to the cross member of the frame and beingfirmly held by bolts to the vertical member of the frame insures a rigidconnection and avoids any strain or distortion on the fastening screwsat the miter.

As a means for stiffening the two plates and to serve as a mounting fora wood block 22, I provide a short channel section having a web 23 andside flanges 24 that fits bet-Ween the two legs 19 of the plates and maybe weldy ed thereto.

ter the wall has been laid to a certain height Y the braces includingthe block 22 are knocked out and the space between the flanges receivethe tile or other formv of wall. j

In the Construction in F igs. 6 to 9 inclusive the frame or casingelements are identical with those already described'.V However, theattaching` elements differ somewhat in that they are arranged in rightlines instead of diagonally as shown in the construction just described.The attaching channels are best shown in Figs. 8 and 9. The upperchannel Yshown in Fig. 8 comprises a web 26 which may be welded to thejamb, side flanges 27 and apertured ears or lugs 28 integral withtheside flanges. The lower channel comprises a web 29 having; aperturestherein and which is welded to thej amb of the vertical frame element,and side flanges 30 having apertures V3l therein. l/Vhen Vthe parts arepositioned as shown in Fig, 6 screws 32 maybe passed through theregistering apertures to securely draw the frame element; into theproper meeting relation of the miter'joint. v

lAs in the construction of Figs. l to 5, I provide side plates 32 ofangular outline which are welded to the flanges. 27 of the upper elementand which are apertured to accommodate bolts 33 vpassing` through theplates and aperture 31 in the lower attaching element. Similarly Iprovide a cross channel Set extending between the plates and acting as aseat for a wood block 35.-

p In each 'of the constructions the assembly is very'simply accomplishedwith the assurance that an exact fit of the parts will result. A

firm and rigid frame is insured at comparatively small expense.Furthermore the simple j means for attachment of bracing or positioningmeans will commend itself to those required t install the frames.

Modifications other than those disclosed herein will undoubtedly suggestthemselves to others and I do not wish to be limited except asindicatedin the appended claims.

I claim:

l. In a metal door frame a combination with vertical and transverseelements, metal members secured to one of said elements andprojectinggvin to the plane of another element and adapted to be securedthereto to retain the elements in proper relation and a wood blocksecured to one'of said metal members and adapted to act as a temporarymeans for use in positioning and holding the framesbetween a floor andCeiling.

2. In conibination, vertical and horizontal frame members includingintegral jamb and trim, channel memberswelded to said vertical andhorizontal members and having registering apertured portions adapted toreceive holding` means,.and means for securing a temporary wood block toone 'ofsaid channel members for use in positioning said frame between afloor and ceiling. 'i

3. In combination7 vertical and horizontal doorframe elements eachconsisting; of a sheet of metal bent to provide integral jamb,V stop andtrim elements, a metal holdingl device welded to respective vertical andhorizontal frame members and provided with cooperating' apertured wingportions adapted to receive screws for accurately'positioning the frameelements at their corners, and addition,- al metal members welded toone'of'said frame members and projecting around theV corner intoadjacent cooperative relation to the other frame element, and additionalholding means associated with said additional member and saidcooperating frame member. Q In testimony whereofI have aHiXed mysignature.

' j Isaac A. BAUM.

